The Kawasaki™ UniSource™ 19.2V Expandable Power Source System lets you build your own cordless power tool collection without having to buy a battery and charger every time! Purchase and use UniSource battery/charger kit # 840592 (1 hour recharge) or battery/charger kit # 840639 (3-5 hour recharge) for use with all UniSource tools. Waxer/polisher generates 3,300 orbits per minute. Includes terry and wool bonnets. Two year warranty. Uses replacement battery 840638. BATTERY, CHARGER AND CARRY CASE ARE NOT INCLUDED WITH THIS TOOL.